CN213623590U - Urban black and odorous river course in-situ dredging system - Google Patents

Abstract

The utility model relates to an ecological environmental protection field of administering discloses a black smelly river course normal position desilting system in city, inhale the ship including the environmental protection hank, still add and mixing arrangement with the vehicular medicament integration of establishing at the bank including establishing the buoy formula work platform on the river course, buoy formula work platform upper berth is equipped with a plurality of steel check net filter unit, and steel check net filter unit intussuseption is filled with filtering material, and the vehicular medicament integration is added and mixing arrangement inhales the ship through advancing the mud pipe with the environmental protection hank and is connected, even has the earth work tube bag through going out the mud pipe, and the earth work tube bag is laid in steel check net filter unit top. The utility model discloses black smelly river course normal position desilting system in city shortens under the prerequisite that silt carried distance and does not expropriate land centralized processing silt, realizes clearing away fast and the dehydration consolidation of river course black smelly silt.

Description

Urban black and odorous river course in-situ dredging system

Technical Field

The utility model relates to an ecological environmental protection field of administering, concretely relates to black smelly river course normal position desilting system in city.

Background

The expansion of cities and the continuous enhancement of human activities lead to the discharge of a large amount of pollutants into rivers and the deposition of the pollutants into bottom mud, which not only causes the serious problem of river channel siltation, but also aggravates the endogenous pollution of the river channels, and poses serious threats to the improvement of urban water environment and the health of ecological systems.

River sediment is removed by dredging the river channel by a mechanical means, the problem of endogenous pollution is solved while the overflowing capacity of the river channel is enhanced, and the method has important significance for improving the flood control and drainage capacity of the urban river channel and improving the urban water environment.

At present, however, in urban river dredging and sludge treatment, river sludge is conveyed to a centralized disposal site to be subjected to ex-situ treatment such as dehydration and consolidation by mainly adopting a mode of firstly dredging and then treating. This approach has the following problems: 1) the long-distance conveying of the sludge has the risk of secondary environmental pollution; 2) under the background of the shortage of urban land, the coordination of the land for sludge centralized treatment is difficult.

Therefore, how to shorten the bottom sediment conveying distance and reduce centralized disposal collection land in the process of implementing bottom sediment desilting and disposal of the urban black and odorous river channel is an important problem to be solved urgently at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a black smelly river course normal position desilting system in city to the not enough of above-mentioned technique shortens silt transport distance and does not explain the prerequisite of land centralized processing silt under, realizes clearing away fast and the dehydration of river course black smelly silt concreties.

In order to realize the above-mentioned purpose, the utility model discloses a black smelly river course normal position desilting system in city, inhale the ship including the environmental protection hank, still add and mixing arrangement including establishing the pontoon formula work platform on the river course and establishing the vehicular medicament integration at the bank, the pontoon formula work platform upper berth is equipped with a plurality of steel check net filter unit, steel check net filter unit intussuseption is filled with filtering material, vehicular medicament integration add and mixing arrangement through advance the mud pipe with the ship is inhaled to the environmental protection hank, even has the earth work bag through going out the mud pipe, the earth work bag is laid steel check net filter unit top.

Preferably, vehicular medicament integration adds and mixing arrangement includes the locomotive, be equipped with on the locomotive with advance mud union coupling's silt reactor, the bottom of silt reactor even has go out the mud pipe, still be equipped with the flocculating agent storage tank on the locomotive, the flocculating agent storage tank pass through screw conveyer with the silt reactor is connected, be equipped with the mixer in the silt reactor, it is equipped with the force (forcing) pump on the mud pipe to go out.

Preferably, the filtering material comprises pebbles and activated carbon, the activated carbon is paved in the steel mesh filtering unit, the particle size is 8-12 meshes, the paving height is 1-1.5 cm, the pebbles are paved on the activated carbon, and the diameter of the pebbles is 3-5 cm.

Preferably, the buoy type working platform is formed by assembling a plurality of buoys, the buoys are connected through short connecting bolts, and the steel grid filtering unit is fixedly installed on the buoy type working platform through the long connecting bolts.

Preferably, the pontoon type working platform is formed by splicing double-layer pontoons, the height of the double-layer pontoon in the pontoon type working platform is 600-800 mm, the maximum load is 600-800 kg/m2, the cross section of the pontoon is square, the four corners are in arc obtuse angle shape, and each 1 square meter of the pontoon type working platform is provided with 8 pontoons.

Preferably, the steel grid filtering unit is a cuboid with the side length of 1-1.5 m and the height of 5-6 cm, the steel grid filtering unit is a hot-dip galvanized steel grid, and the size of a sieve mesh is 10-14 meshes.

Preferably, the size of the geotextile tube bag is a square with the side length of 1-1.5 m, the equivalent aperture of the geotextile tube bag is 0.2-0.6 mm, the permeability is not less than 20L/m2/s, the tensile strength of a seam is not less than 70kN/m, and the filling height is not more than 0.45 m.

Compared with the prior art, the utility model, have following advantage:

1. by constructing the float-type working platform on the river channel to be desilted as a sludge consolidation and dehydration site, the problem that a centralized sludge disposal site is difficult to build in an urban area is solved, the conveying distance of desilting slurry is shortened, and secondary pollution to the environment is effectively avoided;

2. adopt the geotechnological tube bag to carry out silt dehydration and concretion silt, avoid the environmental pollution problem that the silt sunning caused, and compare mechanical dehydration, can reduce the cost that the river course desilting was dealt with.

Drawings

FIG. 1 is a schematic structural view of the in-situ dredging system for urban black and odorous riverways of the present invention;

FIG. 2 is a schematic view of the integrated adding and mixing device for vehicle-mounted medication in FIG. 1;

FIG. 3 is a schematic structural view of the pontoon-type work platform shown in FIG. 1;

fig. 4 is a schematic view of the geotextile tube bag of the present invention placed on the buoy type working platform;

fig. 5 is a schematic structural diagram of the steel mesh filter unit in fig. 1.

The components in the figures are numbered as follows:

the environment-friendly cutter suction vessel comprises an environment-friendly cutter suction vessel 1, a river channel 2, a floating drum type working platform 3, a vehicle-mounted medicament integrated adding and mixing device 4, a steel grid filtering unit 5, a mud inlet pipe 6, a mud outlet pipe 7, a soil engineering pipe bag 8, a moving vehicle 9, a sludge reactor 10, a flocculating agent storage tank 11, a spiral conveyor 12, a stirrer 13, a pressure pump 14, pebbles 15, activated carbon 16, a floating drum 17, a short connecting bolt 18 and a long connecting bolt 19.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific embodiments.

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the utility model relates to a black smelly river course normal position desilting system in city, inhale ship 1 including the environmental protection hank, still including establishing buoy formula work platform 3 on river course 2 and establishing at the vehicular medicament integration on bank add and mixing arrangement 4, buoy formula work platform 3 upper berth is equipped with a plurality of steel check net filter unit 5, the intussuseption of steel check net filter unit 5 is filled with filtering material, vehicular medicament integration is added and mixing arrangement 4 is inhaled ship 1 through advancing mud pipe 6 and environmental protection hank and is connected, even have geotechnological pipe bag 8 through going out mud pipe 7, geotechnological pipe bag 8 is laid in steel check net filter unit 5 top.

In addition, as shown in fig. 2, the vehicle-mounted integrated chemical adding and mixing device 4 comprises a moving vehicle 9, a sludge reactor 10 connected with the sludge inlet pipe 6 is arranged on the moving vehicle 9, a sludge outlet pipe 7 is connected to the bottom of the sludge reactor 10, a flocculant storage tank 11 is further arranged on the moving vehicle 9, the flocculant storage tank 11 is connected with the sludge reactor 10 through a screw conveyor 12, a stirrer 13 is arranged in the sludge reactor 10, and a pressure pump 14 is arranged on the sludge outlet pipe 7.

In this embodiment, as shown in fig. 4, the filter material includes pebbles 15 and activated carbon 16, the activated carbon 16 is laid in the steel grid filter unit 5, the particle size is 10 meshes, the laying height is 1.5cm, the pebbles 15 are laid on the activated carbon 16, and the diameter of the pebbles 15 is 4 cm.

As shown in fig. 3, the pontoon type working platform 3 is formed by splicing pontoons 17, the pontoons 17 are connected through short connecting bolts 18, the steel mesh filter unit 5 is fixedly installed on the pontoon type working platform 3 through long connecting bolts 19, the pontoon type working platform 3 is formed by splicing double-layer pontoons 17, the height of the double-layer pontoons 17 in the pontoon type working platform 3 is 800mm, the maximum load is 640kg/m2, the cross section of the pontoons 17 is square, four corners are in a shape of arc obtuse angles, and 8 pontoons 17 are arranged in each 1 square meter of the pontoon type working platform 3.

In this embodiment, as shown in fig. 5, the steel mesh filtering unit 5 is a cuboid with a side length of 1m and a height of 5cm, the steel mesh filtering unit 5 is a hot-dip galvanized steel mesh, and the mesh size is 10 meshes. Similarly, the size of the geotube bag 8 is a square with the side length of 1m, the equivalent aperture of the geotube bag 8 is 0.2mm, the permeability is more than or equal to 20L/m2/s, the seam tensile strength is more than or equal to 70kN/m, the filling height is not more than 0.45m, and the geotube bag 8 is woven by high-toughness polypropylene yarns.

In the embodiment, the flocculating agent in the flocculating agent storage tank 11 is chitosan and poly ferric chloride, and the addition amount of the flocculating agent is 0.1-0.5% of the mass of the slurry in the sludge reactor 10.

When the embodiment is used, the disposal method comprises the following steps:

(1) a buoy type working platform 3 is built on a river channel 2 to be desilted;

(2) a steel grid filtering unit 5 is arranged on the float type working platform 3, and filtering materials consisting of pebbles 15 and activated carbon 16 are filled in the steel grid filtering unit 5;

(3) laying a geotextile tube bag 8 on the steel grid filtering unit 5;

(4) the mud is sent into the vehicle-mounted type integrated agent adding and mixing device 4 through the mud inlet pipe 6 by using the environment-friendly cutter suction dredger 1, a flocculating agent is added and uniformly mixed, and then the mud is sent to the soil engineering pipe bag 8 through the mud outlet pipe 7, the vehicle-mounted type integrated agent adding and mixing device 4 is positioned at the bank of the river, and the filling height of the soil engineering pipe bag 8 is not more than 0.45 m;

(5) after the earthwork pipe bag 8 is filled, the slurry in the earthwork pipe bag 8 is solidified, precipitated and drained by using the dead weight of the slurry, and the effluent in the earthwork pipe bag 8 flows into the river channel 2 after being filtered and purified by the filter material, so that secondary pollution is avoided;

(6) after the sludge in the soil engineering pipe bag 8 reaches the target of the designed water content, the sludge is transported to the outside for landfill, incineration or greening and the like.

The utility model discloses city black and odorous river course normal position desilting system, shorten silt transport distance and do not expropriate under the prerequisite of land centralized processing silt, realize the quick clearance and the dehydration consolidation of river course 2 black and odorous silt, through setting up buoy formula work platform 3 on waiting to desilt river course 2 and solidifying the dehydration place as the silt, not only solved the urban area and difficultly expropriated the problem of building silt and concentrating the disposal site, also shortened the transport distance of desilting mud simultaneously, effectively avoided the secondary pollution to the environment; adopt geotechnological tube bag 8 to carry out silt dehydration concreties silt, avoids the environmental pollution problem that the silt sunning caused, and compares mechanical dehydration, can reduce the cost that the desilting of river course 2 was dealt with.

Claims (7)

1. The utility model provides a black smelly river course normal position desilting system in city, includes environmental protection cutter suction ship (1), its characterized in that: still add and mixing arrangement (4) including establishing pontoon formula work platform (3) on river course (2) and establishing the vehicular medicament integration on the bank, pontoon formula work platform (3) upper berth is equipped with a plurality of steel check net filter unit (5), steel check net filter unit (5) intussuseption is filled with filtering material, vehicular medicament integration add and mixing arrangement (4) through advance mud pipe (6) with environmental protection cutter suction ship (1) is connected, even has geotechnological pipe bag (8) through going out mud pipe (7), geotechnological pipe bag (8) are laid steel check net filter unit (5) top.

2. The in-situ dredging system for urban black and odorous river channel according to claim 1, characterized in that: vehicular medicament integration adds and mixing arrangement (4) includes locomotive (9), be equipped with on locomotive (9) with advance silt reactor (10) that mud pipe (6) are connected, the bottom of silt reactor (10) even has go out mud pipe (7), still be equipped with flocculating agent storage tank (11) on locomotive (9), flocculating agent storage tank (11) pass through screw conveyer (12) with silt reactor (10) are connected, be equipped with mixer (13) in silt reactor (10), be equipped with force (forcing) pump (14) on going out mud pipe (7).

3. The in-situ dredging system for urban black and odorous river channel according to claim 1, characterized in that: the filtering material comprises pebbles (15) and activated carbon (16), wherein the activated carbon (16) is laid in the steel grid filtering unit (5), the particle size is 8-12 meshes, the laying height is 1-1.5 cm, the pebbles (15) are laid on the activated carbon (16), and the diameter of the pebbles (15) is 3-5 cm.

4. The in-situ dredging system for urban black and odorous river channel according to claim 3, characterized in that: buoy formula work platform (3) are assembled by a plurality of flotation pontoon (17) and are constituted, connect through short connecting bolt (18) between flotation pontoon (17), steel grid filter unit (5) are in through long connecting bolt (19) fixed mounting on buoy formula work platform (3).

5. The in-situ dredging system for urban black and odorous river channel according to claim 4, characterized in that: buoy formula work platform (3) comprise double-deck flotation pontoon (17) concatenation, double-deck flotation pontoon (17) height in buoy formula work platform (3) is 600 ~ 800mm, and the maximum load is 600 ~ 800kg/m2, flotation pontoon (17) cross section is the square, and the four corners is the circular arc obtuse angle molding, every 1 square meter of buoy formula work platform (3) is equipped with 8 flotation pontoon (17).

6. The in-situ dredging system for urban black and odorous river channel according to claim 1, characterized in that: the steel grid filtering unit (5) is a cuboid with the side length of 1-1.5 m and the height of 5-6 cm, the steel grid filtering unit (5) is a hot-dip galvanized steel grid, and the size of a sieve mesh is 10-14 meshes.

7. The in-situ dredging system for urban black and odorous river channel according to claim 1, characterized in that: the size of the geotextile tube bag (8) is a square with the side length of 1-1.5 m, the equivalent aperture of the geotextile tube bag (8) is 0.2-0.6 mm, the permeability is not less than 20L/m2/s, the tensile strength of a seam is not less than 70kN/m, and the filling height is not more than 0.45 m.

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